.app{
	width: 100%;
	height: 100vh;
	background-color: #ffffff;
	position: relative;
	display: flex;
	justify-content: center;
	align-items: center;
}
.text71{
	font-weight: 600;
	font-size: 18px;
	color: transparent;
	letter-spacing: 4px;
	margin: 0;
	padding: 0 16px;
	background: linear-gradient(to right, #000 0, #ffff00 20%, #000 40%);
	background-position: -32px 0;
	-webkit-background-clip: text;	
	animation: eff71 3s linear infinite;
}
@keyframes eff71{
	to{
		background-position: 130px 0;
	}
}